A fire at the Triangle Shirtwaist Factory in New York City killed 146 people on this day in history, March 25, 1911 — leading to a host of worker safety reforms.

One note caught my eye: ... The Triangle fire catalyzed reforms in New York that spread nationwide—outward-swinging exit doors and sprinklers in high-rise buildings, for example.

The 1911 fire at the Triangle Shirtwaist Factory in New York killed 146 workers, mostly young immigrant women, and galvanized the U.S. labor movement.

And ponder the site of the Triangle Fire, today a New York University property. The Brown Building, as it is now known, was only made a National Historic Landmark in 1991.